A provision in HB381 will impose a new graduated income tax on pass-through oil and gas entities starting in 2029—and the clock for compliance starts in 2028.
Most Alaska construction and trades owners don't realize that buried in HB381 is a tax provision that could directly affect their business structure and tax liability—even if they don't think of themselves as "oil and gas companies."
Here's what's happening: Starting January 1, 2029, any sole proprietorship, partnership, LLC, or S-corporation that produces, transports, supplies, treats, or liquefies oil or gas in Alaska will face a new entity-level income tax. This applies if your business earns $1 million or more in state-sourced taxable income.
If your construction or trades firm works in oil and gas—whether you're providing transportation services, supplying equipment, treating materials, or involved in liquefaction operations—and you're structured as a pass-through entity (not a C-corporation), this matters to you.
Historically, pass-through entities like LLCs and S-corps don't pay entity-level income tax in Alaska; owners report income on personal returns. HB381 changes that for the oil and gas sector. The new tax will be computed as if your entity were a C-corporation, with a graduated rate structure reaching up to 9.4%.
The $1 million threshold is important: if your Alaska-sourced oil and gas income stays below that, the provision doesn't apply. But if you cross it, the tax kicks in on every dollar of qualifying income earned on or after January 1, 2029.
You don't have to wait until 2029 to prepare. The state is requiring an informational return by March 16, 2028—giving you about a year to understand your exposure and plan accordingly.
The tax itself applies to income earned on or after January 1, 2029. This is a hard date. If you're currently structured as a pass-through entity and expect to hit the $1 million threshold, now is the time to review your business structure with your accountant or tax advisor. Some businesses may consider restructuring before 2029; others may simply need to budget for the new tax liability.
If you operate in Alaska's oil and gas supply chain, you should:
Review your income projections. Will you cross $1 million in state-sourced taxable income? If yes, the new tax applies.
Consult your tax advisor. They can model the impact of the 9.4% entity-level tax on your after-tax returns and discuss whether restructuring makes sense for your situation.
Mark your calendar for March 16, 2028. That's when the informational return is due. Missing it could create compliance issues.
The provision is found in Section 24 of HB381 (AS 43.20.019, pages 27–30), with effective date language on page 45.
This is a genuine operational change for Alaska trades and construction firms in the oil and gas sector. It's not a surprise tax; it's law now, and the transition period is short. A conversation with your accountant this year can save headaches later.
For a free, detailed read on how this provision applies to your specific business structure, reach out to your industry association or local chamber.